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polycrystalline

[ pol-ee-kris-tl-in, -ahyn, -een ]
/ ˌpɒl iˈkrɪs tl ɪn, -ˌaɪn, -ˌin /
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adjective

(of a rock or metal) composed of aggregates of individual crystals.
having or consisting of crystals that are variously oriented.

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Origin of polycrystalline

First recorded in 1920–25; poly- + crystalline
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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